US5901468A - Flexible foot support insert for athletic shoe, and the like - Google Patents

Flexible foot support insert for athletic shoe, and the like Download PDF

Info

Publication number
US5901468A
US5901468A US08/831,134 US83113497A US5901468A US 5901468 A US5901468 A US 5901468A US 83113497 A US83113497 A US 83113497A US 5901468 A US5901468 A US 5901468A
Authority
US
United States
Prior art keywords
insert
shoe
user
slots
inserts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US08/831,134
Inventor
Robert S. Whyte
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US08/831,134 priority Critical patent/US5901468A/en
Application granted granted Critical
Publication of US5901468A publication Critical patent/US5901468A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
    • A43B17/02—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined wedge-like or resilient
    • A43B17/023—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined wedge-like or resilient wedge-like

Definitions

  • This invention relates to a new and improved insert for shoes, particularly athletic shoes, and more specifically to an insert which spreads a user's weight over a wider area of the midsole, and is sufficiently variable in flexibility to impart greater user comfort when walking or running.
  • inserts for shoes such as athletic shoes, and the like which comprises one or more thin, flexible plates of plastic, metal, or composite material which fit into the bottom of each shoe and extend from the heel of the shoe to about the arch of the foot, and width-wise of the shoe.
  • the plates function to spread the impact of foot strike and support the weight of the wearer and to decrease the compression of the midsole and thus the articulation of the ankle. This reduces the tendency of achilles tendon problems and, prevents excess softness and instability at the heel portion of the shoe.
  • a plurality of slots or score lines are defined transversely or inclined along the length of the insert, and the slots may be extend completely or partially through the insert.
  • a plurality of bores or depressions are defined about midway of each insert where the end of a slot or score line terminates, and are designed to prevent or reduce crack propagation, and to provide additional insert flexibility.
  • stiffening ridges may be provided to increase stiffness or flexibility, depending on user requirements.
  • the inserts may be mounted within the shoe by means of adhesive pads fastened to one or both sides of the insert, or by friction pads adhesively secured to one or both sides of the insert, or both.
  • Use of friction pads mounted on each side of an insert is preferred since this arrangement will secure the insert within the wearer's shoe and also prevent slippage of the foot along the insert surface. Additionally, use of friction pads rather than adhesive pads make it easier to remove an insert from a shoe when the insert becomes worn, or if a replacement becomes necessary or desired to change the fit, and to permit the insert to be employed in more than one pair of shoes.
  • FIG. 1 is an upper, perspective view of an insert according to the invention
  • FIG. 2 a lower, perspective view of the insert of FIG. 1;
  • FIG. 3 is an upper, perspective view of an insert similar to FIG. 1 showing longitudinal strengthening ribs embossed on the surface of the insert;
  • FIG. 4 is a cross sectional view, in side elevation taken along lines 4--4 of FIG. 3;
  • FIG. 5 is a cross sectional view similar to FIG. 4 showing another embodiment of the invention employing friction pads adhesively secured on each side of the insert.
  • FIG. 1 One embodiment of the invention is shown in FIG. 1, and comprises a thin plate 10 of polypropylene formed by injection molding, stamping, etc., and extending from the heel to the arch of the foot, or about 40% of the wearer's foot length.
  • One or more transverse sets of weakening slots 11 are defined along a portion of the insert length and preferably extend through the insert, and the interior ends of each slot are terminated by corresponding bores 12 to reduce crack propagation, and to impart additional transverse flexibility to the insert.
  • the weakening slots may cut by the user, or may be formed at the factory, and function to accommodate the gait characteristics of the user.
  • the bottom of the insert is shown in FIG. 2 and comprises a plurality of two-sided adhesive pads 13, each pad being covered by tear strips 14 which are removed to expose the adhesive portion when the insert is installed into a shoe.
  • adhesive pads and/or non skid pads are typically used in conjunction with fairly rigid inserts such as polypropylene.
  • Stiffening ribs may be defined along the insert, FIG. 3 showing an insert 15 defining transverse slots 16, corresponding terminating bores 17, and stiffening ribs 18.
  • FIG. 5 In place of, or in conjunction with adhesive pads 13, another embodiment of the invention is shown in FIG. 5, and comprises an insert 20 providing friction pads 21, 22 adhesively secured or laminated to each side of the insert.
  • the friction pads are about 1/32"-3/32", and preferably 1/16" thick and manufactured of foam material such as open or closed pore natural rubber, EVA, foam polyurethane, elastomer, neoprene foam, rubber, etc., to impart a non-skid surface and provide cushioning.
  • friction pads may be factory installed or applied to an insert by the user, or the friction pads may be integrally formed with an insert as part of an injection molding process. Obviously, more than one friction pad may be employed alone or on each side of an insert, depending on user requirements.
  • Suitable flexible plastic sheet materials of construction which may be used include polypropylene, polyethylene, nylon, polyester, PVC, epoxy reinforced with graphite, glass, chopped fiber, etc., copolyester elastomer, polyurethane, vinyl polymers, polycarbonate, etc.
  • the presently preferred material is polypropylene, and aluminum sheet is also a candidate.
  • a non-skid material such as variably flexible PVC, the friction pads 21, 22 may be eliminated.
  • the polypropylene insert thickness may vary from about 0.01" to 0.25", suitable slot dimensions of the transverse slots 11 vary from about up to about 4 mm wide; 10-60 mm long; the slots are about 3 to 35 mm apart; and, about 1-50 slots, or sets of slots may be defined along the insert length. Present manufacturing slot dimensions are about 1 mm wide, 40 mm long, 45° from the side to center, and slot spacings are about 15 mm apart.
  • the diameter of a bore 12 may vary from about 1/32"-1/2", and a preferred bore size is about 3/8" in diameter.
  • the inserts and friction pads are sold in sets of various thicknesses and flexibility, and the user selects the set which provides the best initial response.
  • a user can select one or more combination of plate or plates, thicknesses and weakening slots to produce the most desirable response.
  • the integrity of the insert can be diminished or varied in a particular area, thereby making the insert more flexible and less able to transfer laterally the weight of the user. This permits the user to soften areas of the plate and map or tune the response of an athletic shoe more closely to meet individual requirements regarding weight, and/or foot strike characteristics.

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

A variably flexible insert, or sets of inserts for an athletic shoe is provided which absorbs and distributes a portion of the user's weight. The insert is constructed of an injection molded plastic defining a plurality of horizontal slot or score lines which penetrate partially or completely through the insert. A series of perforations terminate the ends of the score lines which prevent or reduce cracking propagation of the score lines, and impart greater flexibility to portions of the insert. In one embodiment, the inserts are secured within the athletic shoe by adhesive pads. In another embodiment, foam friction pads are adhesively mounted or laminated on one or both sides of the flexible inserts, and this provides a non-skid surface within the running shoe and along the user's foot, as well as a certain amount of cushioning.

Description

BACKGROUND OF THE INVENTION
This invention relates to a new and improved insert for shoes, particularly athletic shoes, and more specifically to an insert which spreads a user's weight over a wider area of the midsole, and is sufficiently variable in flexibility to impart greater user comfort when walking or running.
Numerous publications have dealt with inserts for running shoes, and some publications in this field include U.S. Pat. Nos. 3,999,558; 4,486,964; 4,654,984; 4,686,993; 4,800,657; 4,823,420; 4,888,888; 4,894,934; 4,905,383; 5,014,706; 5,311,680; 5,345,701; 5,353,523; 5,396,718; 5,400,528; 5,437,110; 5,513,448; 5,438,768; 5,488,786; 5,511,324; and, 5,528,842.
However, these patents do not provide inserts having the requirements of being sufficiently thin to produce a comfortable fit within the shoe while still imparting some cushioning properties, along with variable flexibility. This allows the user to change the midsole response of the shoe to user requirements.
THE INVENTION
According to the invention, there is provided inserts for shoes, such as athletic shoes, and the like which comprises one or more thin, flexible plates of plastic, metal, or composite material which fit into the bottom of each shoe and extend from the heel of the shoe to about the arch of the foot, and width-wise of the shoe. The plates function to spread the impact of foot strike and support the weight of the wearer and to decrease the compression of the midsole and thus the articulation of the ankle. This reduces the tendency of achilles tendon problems and, prevents excess softness and instability at the heel portion of the shoe.
To impart variable flexibility, a plurality of slots or score lines are defined transversely or inclined along the length of the insert, and the slots may be extend completely or partially through the insert. A plurality of bores or depressions are defined about midway of each insert where the end of a slot or score line terminates, and are designed to prevent or reduce crack propagation, and to provide additional insert flexibility.
If desired, stiffening ridges may be provided to increase stiffness or flexibility, depending on user requirements.
The inserts may be mounted within the shoe by means of adhesive pads fastened to one or both sides of the insert, or by friction pads adhesively secured to one or both sides of the insert, or both. Use of friction pads mounted on each side of an insert is preferred since this arrangement will secure the insert within the wearer's shoe and also prevent slippage of the foot along the insert surface. Additionally, use of friction pads rather than adhesive pads make it easier to remove an insert from a shoe when the insert becomes worn, or if a replacement becomes necessary or desired to change the fit, and to permit the insert to be employed in more than one pair of shoes.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is an upper, perspective view of an insert according to the invention;
FIG. 2 a lower, perspective view of the insert of FIG. 1;
FIG. 3 is an upper, perspective view of an insert similar to FIG. 1 showing longitudinal strengthening ribs embossed on the surface of the insert;
FIG. 4 is a cross sectional view, in side elevation taken along lines 4--4 of FIG. 3; and,
FIG. 5 is a cross sectional view similar to FIG. 4 showing another embodiment of the invention employing friction pads adhesively secured on each side of the insert.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
One embodiment of the invention is shown in FIG. 1, and comprises a thin plate 10 of polypropylene formed by injection molding, stamping, etc., and extending from the heel to the arch of the foot, or about 40% of the wearer's foot length.
One or more transverse sets of weakening slots 11 are defined along a portion of the insert length and preferably extend through the insert, and the interior ends of each slot are terminated by corresponding bores 12 to reduce crack propagation, and to impart additional transverse flexibility to the insert. The weakening slots may cut by the user, or may be formed at the factory, and function to accommodate the gait characteristics of the user.
The bottom of the insert is shown in FIG. 2 and comprises a plurality of two-sided adhesive pads 13, each pad being covered by tear strips 14 which are removed to expose the adhesive portion when the insert is installed into a shoe. Generally, adhesive pads and/or non skid pads are typically used in conjunction with fairly rigid inserts such as polypropylene.
Stiffening ribs may be defined along the insert, FIG. 3 showing an insert 15 defining transverse slots 16, corresponding terminating bores 17, and stiffening ribs 18.
In place of, or in conjunction with adhesive pads 13, another embodiment of the invention is shown in FIG. 5, and comprises an insert 20 providing friction pads 21, 22 adhesively secured or laminated to each side of the insert. Commercial production of the inserts shown in FIG. 5 is the presently contemplated preferred embodiment of the invention. The friction pads are about 1/32"-3/32", and preferably 1/16" thick and manufactured of foam material such as open or closed pore natural rubber, EVA, foam polyurethane, elastomer, neoprene foam, rubber, etc., to impart a non-skid surface and provide cushioning.
Individual friction pads may be factory installed or applied to an insert by the user, or the friction pads may be integrally formed with an insert as part of an injection molding process. Obviously, more than one friction pad may be employed alone or on each side of an insert, depending on user requirements.
Suitable flexible plastic sheet materials of construction which may be used include polypropylene, polyethylene, nylon, polyester, PVC, epoxy reinforced with graphite, glass, chopped fiber, etc., copolyester elastomer, polyurethane, vinyl polymers, polycarbonate, etc. Of the various polymers, the presently preferred material is polypropylene, and aluminum sheet is also a candidate. When using a non-skid material such as variably flexible PVC, the friction pads 21, 22 may be eliminated.
The polypropylene insert thickness may vary from about 0.01" to 0.25", suitable slot dimensions of the transverse slots 11 vary from about up to about 4 mm wide; 10-60 mm long; the slots are about 3 to 35 mm apart; and, about 1-50 slots, or sets of slots may be defined along the insert length. Present manufacturing slot dimensions are about 1 mm wide, 40 mm long, 45° from the side to center, and slot spacings are about 15 mm apart. The diameter of a bore 12 may vary from about 1/32"-1/2", and a preferred bore size is about 3/8" in diameter.
Typically, the inserts and friction pads are sold in sets of various thicknesses and flexibility, and the user selects the set which provides the best initial response. When properties of a particular foot strike have been established, a user can select one or more combination of plate or plates, thicknesses and weakening slots to produce the most desirable response.
By means of forming slots or score lines along the insert, the integrity of the insert can be diminished or varied in a particular area, thereby making the insert more flexible and less able to transfer laterally the weight of the user. This permits the user to soften areas of the plate and map or tune the response of an athletic shoe more closely to meet individual requirements regarding weight, and/or foot strike characteristics.

Claims (5)

I claim:
1. A method of tuning a shoe response to user requirements, including weight and foot strike characteristics, which comprises:
a.) inserting at least one thin, variably flexible plate insert constructed of a material selected from the class consisting of plastic, composite and metal, the plate extending from about heel-to-arch of the shoe;
b.) forming a plurality of weakening slots defined along the insert, and extending inwardly of the insert, the slots imparting flexibility to the insert; and,
c.) forming a plurality of bores, each bore being defined at the termination of a weakening slot to reduce crack propagation, and to impart increased flexibility to the insert, the integrity of the insert being weakened in an area adjacent the weakening slots, thereby enabling a user to weaken areas of the plate and modify the response of the shoe more closely to individual requirements, including weight and foot strike characteristics, on the weakened areas of the insert, the inserts functioning to spread the impact of foot strike, and support the weight of the wearer and to decrease compression of the midsole, and hence the articulation of the ankle, the insert comprising adhesive means mounted on at least one side of the insert to secure the insert within the shoe, and to improve friction between a user and the insert, the insert being provided in sets of various thicknesses and flexibility to enable a user to select a set of inserts which provide a best initial response, and when properties of a particular foot strike have been established, a user can select one or more combination of plate or plates, thicknesses and weakening slots to soften areas of an insert and produce the most desirable response, thereby changing the midsole response of the shoe to user requirements.
2. The method of claim 1, in which the insert thicknesses are about 0.01"-0.25", the insert length is about 40% of the shoe length, the weakening slot dimensions are about 4 mm wide, about 10 mm-60 mm long,the slots are about 3 mm-35 mm apart, and about 1-50 slots are defined along the insert length, and bore diameters are about 1/32"-3/8".
3. The method of claim 1, in which the insert is constructed of a material selected from the class consisting of polypropylene, polyethylene, nylon, polyester, PVC, epoxy reinforced with graphite, glass or chopped fiber, copolyester elastomer, polyurethane, vinyl polymers, polycarbonate, and aluminum sheet.
4. The method of claim 1, in which the non-skid means is selected from the class consisting of open and closed pore foam material, natural foam rubber, EVA, foam polyurethane, foam elastomer, isoprene foam, and rubber.
5. The method of claim 4, in which the non-skid means are about 1/32"-3/32 in thickness.
US08/831,134 1997-04-01 1997-04-01 Flexible foot support insert for athletic shoe, and the like Expired - Lifetime US5901468A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US08/831,134 US5901468A (en) 1997-04-01 1997-04-01 Flexible foot support insert for athletic shoe, and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/831,134 US5901468A (en) 1997-04-01 1997-04-01 Flexible foot support insert for athletic shoe, and the like

Publications (1)

Publication Number Publication Date
US5901468A true US5901468A (en) 1999-05-11

Family

ID=25258355

Family Applications (1)

Application Number Title Priority Date Filing Date
US08/831,134 Expired - Lifetime US5901468A (en) 1997-04-01 1997-04-01 Flexible foot support insert for athletic shoe, and the like

Country Status (1)

Country Link
US (1) US5901468A (en)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6581305B2 (en) 2000-02-03 2003-06-24 Odyssey Shoes, Inc. Footwear with fixedly secured insole for structural support
USD485424S1 (en) 2002-02-01 2004-01-20 Foot Steps Orthotics Pty Limited Section of an orthotic insert
USD485667S1 (en) 2002-02-01 2004-01-27 Foot Steps Orthotics Pty Limited Section of an orthotic insert
US20040222334A1 (en) * 2003-05-07 2004-11-11 Rich Jeffrey S. Baby bottle holder
US6880272B2 (en) * 2000-12-04 2005-04-19 Raymond Wells Easy slip fit shoe
USD536163S1 (en) * 2004-10-08 2007-02-06 Columbia Insurance Co. Outsole for a shoe
USD538519S1 (en) * 2004-10-14 2007-03-20 Columbia Insurance Company Outsole for a shoe
USD548936S1 (en) * 2006-01-19 2007-08-21 Columbia Insurance Company Outsole for a shoe
US20080086908A1 (en) * 2006-10-16 2008-04-17 Nike, Inc. Article of Footwear with Deforming Insert
KR100828908B1 (en) 2007-12-06 2008-05-09 장명계 Health shoes and midsole manufacturing method with midsole structure of triple structure
WO2009054626A3 (en) * 2008-08-12 2009-06-25 Myung Kye Jang A shoe and midsole manufacturing method having 2-state insert structure
US20100186257A1 (en) * 2009-01-29 2010-07-29 Margaret Karl Insole for a ballet slipper
US20110314696A1 (en) * 2010-06-23 2011-12-29 Derose Joseph Shoe insert for heeled shoes and method therefor
US20130302601A1 (en) * 2001-08-27 2013-11-14 Matscitechno Licensing Company Vibration dampening material
US20150059204A1 (en) * 2013-09-04 2015-03-05 Solepower Llc Segmented Insole for Support of Embedded Systems
US20150223558A1 (en) * 2014-02-10 2015-08-13 Upright Footwear, Inc. Method and Device for Addressing Leg Length Inequality
US20170055641A1 (en) * 2015-09-01 2017-03-02 Vincent L. Truchsess Footwear
KR101775416B1 (en) 2016-10-31 2017-09-06 쓰리엘랩스 주식회사 Shoe insole flexible board
US11382386B2 (en) * 2016-06-30 2022-07-12 Boot Royalty Company, L.P. Comfort system for boots
US12108818B2 (en) 2015-12-18 2024-10-08 Matscitechno Licensing Company Apparatuses, systems and methods for equipment for protecting the human body by absorbing and dissipating forces imparted to the body
US12250980B2 (en) 2015-12-18 2025-03-18 Matscitechno Licensing Company Apparatuses, systems and methods for equipment for protecting the human body by absorbing and dissipating forces imparted to the body

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US315254A (en) * 1885-04-07 Inner sole for boots or shoes
US1111361A (en) * 1913-04-16 1914-09-22 Laurence Carr Insole for boots and shoes.
US1142848A (en) * 1912-01-22 1915-06-15 William M Scholl Instep-arch support.
US1566106A (en) * 1925-06-22 1925-12-15 Leonard S Lamb Heel protector
US1792677A (en) * 1929-03-08 1931-02-17 Louis A Cook Heel supporter for shoes
US2404731A (en) * 1943-11-29 1946-07-23 Ross H Johnson Making insoles
US4266350A (en) * 1979-08-20 1981-05-12 Ormid Company Footwear insole
US4571857A (en) * 1984-05-07 1986-02-25 Rigoberto Castellanos Plastic foot support with reinforcing struts
US4813157A (en) * 1986-07-21 1989-03-21 Michelle Boisvert Adjustable shoe insole
US5154682A (en) * 1989-09-14 1992-10-13 David Kellerman Low friction adjustable shoe insert

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US315254A (en) * 1885-04-07 Inner sole for boots or shoes
US1142848A (en) * 1912-01-22 1915-06-15 William M Scholl Instep-arch support.
US1111361A (en) * 1913-04-16 1914-09-22 Laurence Carr Insole for boots and shoes.
US1566106A (en) * 1925-06-22 1925-12-15 Leonard S Lamb Heel protector
US1792677A (en) * 1929-03-08 1931-02-17 Louis A Cook Heel supporter for shoes
US2404731A (en) * 1943-11-29 1946-07-23 Ross H Johnson Making insoles
US4266350A (en) * 1979-08-20 1981-05-12 Ormid Company Footwear insole
US4571857A (en) * 1984-05-07 1986-02-25 Rigoberto Castellanos Plastic foot support with reinforcing struts
US4813157A (en) * 1986-07-21 1989-03-21 Michelle Boisvert Adjustable shoe insole
US5154682A (en) * 1989-09-14 1992-10-13 David Kellerman Low friction adjustable shoe insert

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6581305B2 (en) 2000-02-03 2003-06-24 Odyssey Shoes, Inc. Footwear with fixedly secured insole for structural support
US6880272B2 (en) * 2000-12-04 2005-04-19 Raymond Wells Easy slip fit shoe
US20130302601A1 (en) * 2001-08-27 2013-11-14 Matscitechno Licensing Company Vibration dampening material
USD485424S1 (en) 2002-02-01 2004-01-20 Foot Steps Orthotics Pty Limited Section of an orthotic insert
USD485667S1 (en) 2002-02-01 2004-01-27 Foot Steps Orthotics Pty Limited Section of an orthotic insert
US20040222334A1 (en) * 2003-05-07 2004-11-11 Rich Jeffrey S. Baby bottle holder
US6986487B2 (en) * 2003-05-07 2006-01-17 Rich Jeffrey S Baby bottle holder
USD536163S1 (en) * 2004-10-08 2007-02-06 Columbia Insurance Co. Outsole for a shoe
USD538519S1 (en) * 2004-10-14 2007-03-20 Columbia Insurance Company Outsole for a shoe
USD548936S1 (en) * 2006-01-19 2007-08-21 Columbia Insurance Company Outsole for a shoe
US20080086908A1 (en) * 2006-10-16 2008-04-17 Nike, Inc. Article of Footwear with Deforming Insert
KR100828908B1 (en) 2007-12-06 2008-05-09 장명계 Health shoes and midsole manufacturing method with midsole structure of triple structure
WO2009054626A3 (en) * 2008-08-12 2009-06-25 Myung Kye Jang A shoe and midsole manufacturing method having 2-state insert structure
KR101116485B1 (en) 2008-08-12 2012-02-29 장명계 A Shoe and Midsole Manufacturing Method Having 2-State Insert Structure
US20100186257A1 (en) * 2009-01-29 2010-07-29 Margaret Karl Insole for a ballet slipper
US8082682B2 (en) * 2009-01-29 2011-12-27 Margaret Karl Insole for a ballet slipper
US20110314696A1 (en) * 2010-06-23 2011-12-29 Derose Joseph Shoe insert for heeled shoes and method therefor
US20150059204A1 (en) * 2013-09-04 2015-03-05 Solepower Llc Segmented Insole for Support of Embedded Systems
US20150223558A1 (en) * 2014-02-10 2015-08-13 Upright Footwear, Inc. Method and Device for Addressing Leg Length Inequality
US20170055641A1 (en) * 2015-09-01 2017-03-02 Vincent L. Truchsess Footwear
US12108818B2 (en) 2015-12-18 2024-10-08 Matscitechno Licensing Company Apparatuses, systems and methods for equipment for protecting the human body by absorbing and dissipating forces imparted to the body
US12250980B2 (en) 2015-12-18 2025-03-18 Matscitechno Licensing Company Apparatuses, systems and methods for equipment for protecting the human body by absorbing and dissipating forces imparted to the body
US12274318B2 (en) 2015-12-18 2025-04-15 Matscitechno Licensing Company Apparatuses, systems and methods for equipment for protecting the human body by absorbing and dissipating forces imparted to the body
US11382386B2 (en) * 2016-06-30 2022-07-12 Boot Royalty Company, L.P. Comfort system for boots
US20220295941A1 (en) * 2016-06-30 2022-09-22 Boot Royalty Company, L.P. Comfort System for Boots
US12082645B2 (en) * 2016-06-30 2024-09-10 Boot Royalty Company, L.P. Comfort system for boots
KR101775416B1 (en) 2016-10-31 2017-09-06 쓰리엘랩스 주식회사 Shoe insole flexible board

Similar Documents

Publication Publication Date Title
US5901468A (en) Flexible foot support insert for athletic shoe, and the like
CN101018493B (en) Improved performance footwear device
JP2649293B2 (en) Heel cushion stabilizer in athletic shoes
KR940004750B1 (en) Athletic shoes
JP3308482B2 (en) Midsole structure for sports shoes and molding method thereof
EP0878142B1 (en) Athletic shoe midsole design and construction and process for manufacturing the same
US6647645B2 (en) Midsole structure of athletic shoe
EP0095357B1 (en) Impact absorbing member for footwear
US5628128A (en) Sole construction for footwear
US6449878B1 (en) Article of footwear having a spring element and selectively removable components
US5052130A (en) Spring plate shoe
US5191727A (en) Propulsion plate hydrodynamic footwear
JP5175340B2 (en) Support plate for shoes
AU736082B2 (en) Shoe sole cushion
EP0359421B1 (en) Athletic shoe
US4614046A (en) Shoe sole having a midsole consisting of several layers
US4536974A (en) Shoe with deflective and compressionable mid-sole
US5625963A (en) Sole construction for footwear
EP0741529B1 (en) Elastomer midsole shoe structure
US20070271818A1 (en) Shoe spring and shock absorbing system
EP1857003A2 (en) Footwear sole
KR20100089813A (en) Arthritis and diabetes insole
WO2007058762A2 (en) Footwear sole assembly having spring mechanism
CN115087374A (en) Running shoe sole
JPH0431682B2 (en)

Legal Events

Date Code Title Description
STCF Information on status: patent grant

Free format text: PATENTED CASE

FPAY Fee payment

Year of fee payment: 4

REMI Maintenance fee reminder mailed
FPAY Fee payment

Year of fee payment: 8

SULP Surcharge for late payment

Year of fee payment: 7

REMI Maintenance fee reminder mailed
FPAY Fee payment

Year of fee payment: 12

SULP Surcharge for late payment

Year of fee payment: 11